The Effect of Anode Shapes on Neutron Yield in a 4.4 kJ Dense Plasma Focus Device
POSTER
Abstract
The Dense Plasma Focus (DPF) serves as a source of neutrons and electrons. Experiments to investigate five different anode geometries were executed at 4.4 kJ (voltage ~20 kV, current ~230 kA). Spherical and flat anodes with and without a center cavity were explored. A series of time-resolved Schlieren probing, filtered X-ray PIN diodes, and neutron activation detectors were used to get information about pinch dynamics. It was found that neutron yield is optimized for a hollow anode with a maximum yield of 1.97E+08 per pulse, while x-ray emission is optimized using a solid anode, despite the geometry of the tip. This analysis leads to the conclusion that an anode with a cavity optimizes neutron yield while the anode without the cavity serves as an x-ray source due to electron beams.
Presenters
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Veronica Eudave
University of California, San Diego
Authors
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Veronica Eudave
University of California, San Diego
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Maria Pia Valdivia Leiva
University of California, San Diego, Center for Energy Research, University of California San Diego, San Diego, California, USA, University of California San Diego
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Swarvanu Ghosh
University of California, San Diego
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Jacquelynne Vaughan
University of California, San Diego
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Eric N Hahn
University of California, San Diego
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Fabio Conti
University of California, San Diego
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Farhat N Beg
University of California, San Diego